I'm using the "Graph Data Science Playground" app within neo4j desktop (using version 5.6.0) and have a database that I can explore using the browser and as you can see below has nodes and edges. Yet, when I try to connect to the same database using the "Graph Data Science Playground" app, it throws an error saying
"Missing: nodes or relationships.
This database does not contain any nodes or relationships. You need to load some data, otherwise the graph algorithms won't return any results."
The configure --> refresh option suggested in that post doesn't work (didn't work for the OP there too).
There's another suggestion there, i.e. setting the database I want to work on as the default, but I don't know how to do that with the neo4j desktop version (is it changing a variable like default_database in the neo4j.conf file?). I'd appreciate it if you could tell me how to do that so that I can give it a try.
You were quite right about the neo4j setting but is also works through a procedure (copied the below from the default config file).
# Name of the default database (aliases are not supported). Can be changed with the 'dbms.setDefaultDatabase' procedure.
#initial.dbms.default_database=neo4j